Morphology and ultrastructure of multiple life cycle stages of the photosynthetic relative of apicomplexa, Chromera velia

Protist
Miroslav OborníkJulius Lukes

Abstract

Chromera veliais a photosynthetic alga with a secondary plastid that represents the closest known photosynthetic relative of the apicomplexan parasites. The original description of this organism was based on brownish, immotile coccoid cells, which is the predominating stage ofC. veliain the culture. Here we provide a detailed light and electron microscopy description of coccoid cells ofC. veliaand a previously undocumented bi-flagellated stage that is highly motile and moves in a characteristic zig-zag pattern. Transformation from a coccoid into a flagellate stage occurs in exponentially growing cultures, and is accelerated by exposure to light. TheC. veliacells contain a pseudoconoid, which is likely homologous to the corresponding structure in the apical complex of Apicomplexa, cortical alveoli subtended by subpellicular microtubules, mitochondrion with tubular cristae, a micropyle, and a distinctive chromerosome, an apparently novel type of extrusion organelle. Ultrastructural analysis of the flagellate supports its close association with colpodellids and apicomplexans and provides important insight into their evolution.

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Citations

Jun 8, 2014·Photosynthesis Research·Marcus MannReimund Goss
Dec 18, 2010·Protoplasma·Geoffrey Ian McFadden
May 6, 2011·Current Genetics·Pavel FlegontovJulius Lukeš
Dec 14, 2011·Photosynthesis Research·Hao PanMin Chen
Feb 27, 2015·Proceedings of the National Academy of Sciences of the United States of America·Jan JanouškovecPatrick J Keeling
Jun 21, 2015·Annual Review of Microbiology·Miroslav Oborník, Julius Lukeš
Jan 17, 2012·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Nicolas A Blouin, Christopher E Lane
Jan 13, 2012·The Journal of Eukaryotic Microbiology·David Roy Smith, Patrick J Keeling
Mar 13, 2014·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·David Moreira, Purificación López-García
Oct 17, 2012·International Journal for Parasitology·Marc-Jan Gubbels, Manoj T Duraisingh
Feb 23, 2013·Biochimica Et Biophysica Acta·Josef TichyFrantisek Vacha
Jan 1, 2014·FEMS Microbiology Ecology·Christie FosterJan Šlapeta
Jan 4, 2012·FEMS Microbiology Letters·Victoria Morin-AdelineJan Slapeta
Aug 31, 2016·Communicative & Integrative Biology·Maude F LévêqueSébastien Besteiro
Jul 20, 2016·Protist·Helmuth GoldammerSiegfried Reipert
Oct 16, 2016·Biochimica Et Biophysica Acta. Bioenergetics·Erica BelgioOndřej Prášil
Oct 27, 2016·International Journal for Parasitology·Geoffrey Ian McFadden, Ellen Yeh
Jan 13, 2018·The ISME Journal·Amin R MohamedDavid J Miller
Apr 25, 2018·Environmental Microbiology·Varsha MathurPatrick J Keeling
Jun 30, 2018·Journal of Experimental Botany·Eliška Kuthanová TrskováRadek Kana
May 27, 2020·Environmental Microbiology Reports·Amin R MohamedDavid J Miller
Apr 14, 2017·Photosynthesis Research·Erica BelgioRadek Kaňa
Aug 20, 2019·Planta·Abdoallah SharafMiroslav Oborník

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